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authorGravatar Miklos Szeredi <miklos@szeredi.hu>2005-08-01 11:58:51 +0000
committerGravatar Miklos Szeredi <miklos@szeredi.hu>2005-08-01 11:58:51 +0000
commite77cc07e755c1e360455e707653f705d0bd25622 (patch)
tree4aa51ed10ce87556f71d1bc3591f7b0a33d701be /doc/kernel.txt
parentcac547059462a58ec26159cdc408f5828cfe40e5 (diff)
fix
Diffstat (limited to 'doc/kernel.txt')
-rw-r--r--doc/kernel.txt26
1 files changed, 0 insertions, 26 deletions
diff --git a/doc/kernel.txt b/doc/kernel.txt
index 83f96cf..6b5741e 100644
--- a/doc/kernel.txt
+++ b/doc/kernel.txt
@@ -80,32 +80,6 @@ Mount options
allowed to root, but this restriction can be removed with a
(userspace) configuration option.
-'kernel_cache'
-
- This option disables flushing the cache of the file contents on
- every open(). This should only be enabled on filesystems, where the
- file data is never changed externally (not through the mounted FUSE
- filesystem). Thus it is not suitable for network filesystems and
- other "intermediate" filesystems.
-
- NOTE: if this option is not specified (and neither 'direct_io') data
- is still cached after the open(), so a read() system call will not
- always initiate a read operation.
-
-'direct_io'
-
- This option disables the use of page cache (file content cache) in
- the kernel for this filesystem. This has several affects:
-
- - Each read() or write() system call will initiate one or more
- read or write operations, data will not be cached in the
- kernel.
-
- - The return value of the read() and write() system calls will
- correspond to the return values of the read and write
- operations. This is useful for example if the file size is not
- known in advance (before reading it).
-
'max_read=N'
With this option the maximum size of read operations can be set.